import Vue from 'vue'
import VueRouter from 'vue-router'
import login from "../components/login.vue";
import Home from "../components/Home.vue";
Vue.use(VueRouter)



const router = new VueRouter({
  routes:[
    {path:'/',redirect:'/login'},
    {path:'/login',component:login},
    {path:'/Home',component:Home }
  ]
})
//挂载路由导航守卫
router.beforeEach((to,form,next)=>{
  /*to将要访问的路径
  from代表从哪个路径跳转而来
  next是一个函数，表示放行
  next()放行 next（‘/login’）强制跳转*/
  if(to.path=='/login')return next()
  const tokenstr=window.sessionStorage.getItem("token")
  if(!tokenstr)return next('/login')
  next()
})

export default router
